subject: Steps Followed By Industry Leaders For Building Recon Engines [print this page] Steps Followed By Industry Leaders For Building Recon Engines
Getting a replacement engine is a muddled process; it gets vaguer when you dont know whats actually going to happen behind closed doors of garage. Well worry no more, in order to ease up your nerves just read along, from my experience with cars and recon engines, I have found these steps to be somewhat standard, though only big and reputed garages follow all of these as smaller garages skip multiple steps to save time.
Disassembly for initial assessment
Whole procedure starts from disassembly of engine into its core components. Whole engine block, along with its components, is them sent for assessment and inspection.
All internal parts are separated and stored in color coded cartons to avoid mixing up.
Crank and bearings are removed from the bottom end of engine. Stripped systems go into degreasing and cleaning system, hot wash. This is fundamental to remove year long deposits of oil dirt and grim from internal and external parts of engine.
After initial hot wash, engine and its components are pressure washed with water, to remove detergents and sticky grime.
Oil galleries and coolant passage are then cleared to ensure optimal fluid flow.
Then cast blocks are flattened in machining department and its flatness is checked through skimming process. Bores are checked and brought to factory finish through machining.
Crankshafts are grounded to exacting tolerance and are continuously measured during and after this process.
Crankshaft journals are polished to bring them close to manufacturer specifications.
Nitriding is done on piston rings; this process is used to strengthen metals like steel, aluminum and titanium etc.
Reassemble starts after Nitriding and components are attached into short block form.
Meanwhile new bearings are installed and their torque is set according to manufacturer specs.
Cylinder heads are concurrently engineered, they are sand blasted to remove debris and to bring them close to original factory finish.
Valve seats are machined and new seals are placed along with their grounding.
Then matting surface is installed to ensure proper seal and cams are fitted, after getting their clearance checked according to manufacturer settings.
Cylinder heads are pressure tested to ensure proper fit and finally, after reconditioning of engine head, it is installed using a high quality head Eristic head gasket.
Engine units are finished, cleaned, polished then wrapped in plastic and packaged in wooden crates to be shipped to clients all over the world.
This process seems thorough and exhaustive, and to deliver a reliable recon engine, it has to be so.
